Lawn maintenance device

Abstract

A lawn maintenance device is provided. The lawn maintenance device has a generally planar rail system which is permanently inserted into the ground. The top portion of the rail system remains above ground while the remainder of the rail system is underground. A movable tool having a corresponding groove which aligns with the rail runs along the rail and a blade attached to the movable tool trims the lawn or vegetation. The rail provides a thin section of vegetation which can be easily cut.

The invention claimed is: 
     
       1. A lawn cutting device comprising:
 a stationary elongated rail system unit having a top, a bottom, a front, a back, a first side and a second side wherein the stationary elongated rail system unit has a length defined by the distance from the front to the back and wherein the bottom of the stationary elongated rail system is secured underground and wherein the top of the stationary elongated rail system remains aboveground; 
 a movable cutting tool having a frame having a top, a bottom, a front, a back, a first side and a second side wherein the bottom of the frame of the movable cutting tool moves along the top of the stationary elongated rail system unit; 
 a non-circular cutting blade located at the bottom of the movable cutting tool wherein the non-circular cutting blade cuts grass or bushes which are located on the top of or near the top of the stationary elongated rail system unit; 
 wherein the top of the stationary elongated rail system unit and the bottom of the frame of the movable cutting tool each have an arch-shaped portion which correspondingly fit together and wherein the arch-shaped portion of the bottom of the frame of the movable cutting tool supports the movable cutting tool on the stationary elongated rail while the non-circular cutting blade cuts the grass or bushes and wherein the non-circular cutting blade of the movable cutting tool is located outside of the arch-shaped portion of the frame of the bottom of the movable cutting tool; 
 wherein the arch-shaped portion of the bottom of the frame of the movable cutting tool has a generally flat surface in the middle of the arch-shaped portion; 
 a wheel located on the bottom of the movable cutting tool wherein the wheel directly contacts the top of the stationary elongated rail system through an opening in the generally flat surface of the middle of the bottom of the arch-shaped portion of the movable cutting tool; and 
 a star-shaped guide unit located on the bottom of the movable cutting tool wherein the star-shaped guide unit groups clumps of grass together to be cut by the non-circular cutting blade of the movable cutting tool and wherein the wheel and star-shaped guide unit move in unison. 
 
     
     
       2. The lawn cutting device of  claim 1  wherein the wheel and the star-shaped guide unit are on opposite sides of the non-circular cutting blade of the movable cutting tool. 
     
     
       3. The lawn cutting device of  claim 1  further comprising:
 an opening in the bottom of the movable cutting tool wherein the wheel partially extends through the opening in the bottom of the movable cutting tool and wherein the wheel directly contacts the top of the stationary elongated rail system unit and wherein the movement of the movable cutting tool along the stationary elongated rail system unit rotates the wheel. 
 
     
     
       4. The lawn cutting device of  claim 3  wherein the rotation of the wheel of the movable cutting unit therein rotates the star-shaped guide.